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added ability to request the date in a format (#2073)

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Darren Schroeder 2020-06-27 20:36:15 -05:00 committed by GitHub
parent 94a1968a88
commit a30901ff7d
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 62 additions and 33 deletions
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37
crates/nu-cli/src/commands/date.rs
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@ -7,7 +7,7 @@ use crate::commands::WholeStreamCommand;
use chrono::{Datelike, TimeZone, Timelike};
use core::fmt::Display;
use indexmap::IndexMap;
use nu_protocol::{Signature, UntaggedValue};
use nu_protocol::{Signature, SyntaxShape, UntaggedValue};
pub struct Date;
@ -21,6 +21,12 @@ impl WholeStreamCommand for Date {
Signature::build("date")
.switch("utc", "use universal time (UTC)", Some('u'))
.switch("local", "use the local time", Some('l'))
.named(
"format",
SyntaxShape::String,
"report datetime in supplied strftime format",
Some('f'),
)
}
fn usage(&self) -> &str {
@ -47,16 +53,22 @@ impl WholeStreamCommand for Date {
example: "date --utc",
result: None,
},
Example {
description: "Get the current time and date and reports in raw format",
example: "date --format '%Y-%m-%d %H:%M:%S.%f %z'",
result: None,
},
]
}
}
pub fn date_to_value<T: TimeZone>(dt: DateTime<T>, tag: Tag) -> Value
pub fn date_to_value<T: TimeZone>(dt: DateTime<T>, tag: Tag, dt_format: String) -> Value
where
T::Offset: Display,
{
let mut indexmap = IndexMap::new();
if dt_format.is_empty() {
indexmap.insert(
"year".to_string(),
UntaggedValue::int(dt.year()).into_value(&tag),
@ -87,6 +99,13 @@ where
"timezone".to_string(),
UntaggedValue::string(format!("{}", tz)).into_value(&tag),
);
} else {
let result = dt.format(&dt_format);
indexmap.insert(
"formatted".to_string(),
UntaggedValue::string(format!("{}", result)).into_value(&tag),
);
}
UntaggedValue::Row(Dictionary::from(indexmap)).into_value(&tag)
}
@ -100,12 +119,22 @@ pub async fn date(
let tag = args.call_info.name_tag.clone();
let dt_fmt = if args.has("format") {
if let Some(dt_fmt) = args.get("format") {
dt_fmt.convert_to_string()
} else {
"".to_string()
}
} else {
"".to_string()
};
let value = if args.has("utc") {
let utc: DateTime<Utc> = Utc::now();
date_to_value(utc, tag)
date_to_value(utc, tag, dt_fmt)
} else {
let local: DateTime<Local> = Local::now();
date_to_value(local, tag)
date_to_value(local, tag, dt_fmt)
};
Ok(OutputStream::one(value))